Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Share this with
All episodes available on BBC iPlayer (19 total)
All upcoming (0 new and 3 repeats)
See all clips from Horizon
For further info and to find out what happens next, visit:
How to chat to Drs Chris and Xand van Tulleken on Wednesday 20th May at 10pm on Twitter
What’s your ‘tipsy’ point?
Find out which of these anti-hangover strategies could actually work
Celebrate 50 years of Horizon with this free downloadable ebook for tablets.